uRemote

Dear tech guys at Cymatic: the mute, solo and volume functions are still not working, not from any device connecting to my uTrack 24. I have tried iPhone (5), iPad (3), Macbook Pro (2014), and a Windows PC (8.1). Could this be a (partially) failed firmware update? If I look at the firmware indication, it does say the most recent update. All other features work fine. I would appreciate a response.
Any others that have the same issue, or am I the only one?